Iridium Bake Fade/Marks

[SharkSugender]

+1 , Last night I installed a pair of oem ice polarized in a pair of juliets and noticed a few odd marks on the edges in a similar location.

Mounting marks, where you tighten the orbital. Right?

 

[docrusty]

Got photos of these?

This is a OEM fire minute 2.0 lens.

 

[Solomon_Denali]

Mounting marks, where you tighten the orbital. Right?

Not exactly that spot. But I know these were BNIB. No mounting rash , which I think a lot of people are mistaking for what OP is pointing out.

 

[Yo Flawch!]

Maybe it depends on when/where the lenses were made? I went through dozens of pairs of Straightlink lenses, non-polarized, polarized, Prizm, ... , all mirrored, and didn't notice marks on the edges. I'm not saying the "bake" phenomenon is untrue, I just never saw it in person.

 

[dragonvoi]

The only lenses I see delaminating or "chipping" are the lenses that are custom cut...

I think cut lenses are more prone to chipping/delaminating because of the tools used to cut the actual lens...

never seen an aftermarket lens chip/delaminate

Oh they are not delaminated though it’s actually like there is a melted part there. It’s smooth not like when iridium peels.

 

[dragonvoi]

I always thought they were mounting marks

These are brand new unmounted replacement lenses.

 

[dragonvoi]

Why does the marks look to be in the same exact spot on almost all of those lenses ??

looks like mounting marks or chips from going in or coming out of frame

I thinks it is where they were either resting or picked up when the iridium was baked on. Totally smooth, and these are new replacement lenses never been mounted.

 

[dragonvoi]

Maybe it depends on when/where the lenses were made? I went through dozens of pairs of Straightlink lenses, non-polarized, polarized, Prizm, ... , all mirrored, and didn't notice marks on the edges. I'm not saying the "bake" phenomenon is untrue, I just never saw it in person.

I think there is something to this. I noticed them in sorta the same generation lenses. Pre-prizm, or sapphire. I have noticed them in scalpels, Juliet, pit bull that I can remember.

 

[dragonvoi]

This is a OEM fire minute 2.0 lens.

View attachment 894400

View attachment 894401

Yep there it is. Even on the part where there looks like peeling you can see the little fade in the iridium.

 

[qtrain23]

You can see in this video how they hold them. The marks are likely the start/stop from where they cut them